Our coral reefs are dying, but forward-thinking eco-minded artists are helping nature by creating stunning life-sized sculptures . . . and then sinking them. Man has been creating artificial reefs for thousands of years, starting with the Ancient Persians who wanted a military advantage by blocking off an area of the sea. As mankind has evolved, so too have our artificial reefs. The most amazing consist not of our trash or out-dated ships, but of incredibly detailed sculptures created to be placed underwater and slowly but surely undergo a metamorphosis under the sea. While it may look like abandoned statues starting to decay, it is actually art being rebirthed into living, breathing reefs. If you haven’t had a chance to dive or snorkel such locations, then you are missing out. So here is a look at the eerily beautiful process of spectacular art, underwater sculptures, transforming into artificial reefs. [52 Photos]

500 – 700 million years ago, even before dinosaurs roamed the Earth, jellyfish were drifting along on ocean currents. Jellies are among the most spectacular and mysterious marine species in the world. They are the oldest multi-organ animal and have morphed into more than 2,000 different jellyfish species. Some live in freshwater, but jellies can be found in every ocean. Some sea jellies survive close to the surface while others dwell in extreme depths, glowing with bioluminescence in the pitch black water near the bottom of the ocean. Many scientists and deep ocean explorers expect to discover countless more beautiful jiggly jellyfish as they explore deep sea canyons, and other extreme water conditions near underwater volcano vents and in the harsh frozen temperatures of arctic waters. [72 Photos]

Jellyfish go with flow and have drifted along on ocean currents for millions of years, even before dinosaurs lived on the Earth. Few marine creatures are as mysterious and intimidating as jellyfish. Though easily recognized, these animals are often misunderstood. Sea nettles often have riders on their bodies, sometimes offering a place for small living organisms to be able to move around and sometimes being the food source for the organism. There is a reddish tint on the bell of the Pacific Sea Nettle or West Coast Sea Nettle which can span over 3 feet. This is a distinctive characteristic along with maroon tentacles that identify this particular species of jellyfish. The tentacles can be up to 15 feet long. Photo #1 by luna

For 25 years, the Discovery Channel has been showing Shark Week, a week’s worth of shark-orientated programming meant to educate but with plenty of fear factor. For some people, divers, scientists and people who hang out at the beach, sharks are a reality every day of the year. Like big, bad, beautiful wolves, people have long feared the predators prowling the deep and some shark species were hunted until their numbers were threatened. Sharks both fascinate us and fill us with fear, so here’s an up-close look at great whites, hammerheads, tiger sharks, bull sharks, whale sharks, lemon sharks, gray nurse sharks, and other sharks . . . all sprinkled with shark facts. We think sharks are jawesome and swimming with sharks is a pure adrenaline rush! [60 Photos, 10 Videos]

When you see sharks, like this Jaws type, wouldn’t you get out of the water? For a quarter of a century, the Discovery Channel has been showing a week’s worth of shark-orientated programming. We’ve gathered 60 shark photos and 10 videos to celebrate Shark Week, but for some divers and researchers who deal with the underwater world every day, every week is Shark Week. Photo #1 by free wallpaper

Once upon a time, an ancient city in China was named Lion City because Five Lion Mountain loomed large behind it. The city, also known as Shi Cheng, has been buried beneath the water for 53 years. Like the lost Incan City of Machu Picchu was ‘rediscovered,’ so was this lost underwater city that had been founded about 1,300 years ago. Lion City is now located about 85 – 131 feet (26-40 meters) beneath the gorgeous Thousand Island Lake (Qiandao Lake). This valley was submerged when a dam was constructed and a lake was needed. The lake and thousands of islands were man-made. Shi Cheng ‘defied’ the Chinese norm since 5 gates and 5 towers were built into the city instead of 4. Lion City is about the size of 62 football fields. International archaeologists and a film crew recorded the amazing perservation of the lost ‘ruins.’ [23 Photos, 2 Videos]

Truk Lagoon, known as Chuuk – a group of tropical paradise islands in the Federal States of Micronesia – offers adrenaline-junky scuba divers a cool yet creepy underwater adventure in shark-infested Pacific waters while wreck diving the mysterious Ghost Fleet of Truk Lagoon. More than 50 major shipwrecks from WWII litter the seabed, making the undersea wonder of the world the best shipwreck diving destination on the globe. In 1944, Americans launched Operation Hailstone, which has been called the Japanese Pearl Harbor, and the bombardment lasted for three days. The attack wiped out 60 ships and 275 airplanes, sinking them to the bottom of the lagoon, so that now it is the biggest ship graveyard in the world. Most of the wrecks were left untouched for nearly 25 years since people feared setting off the thousands of sunken bombs. Many of the shipwrecks in the scuba diving paradise have full cargo holds full of fighter aircraft, tanks, bulldozers, railroad cars, motorcycles, torpedoes, mines, bombs, boxes of munitions, radios, thousands of various weapons, human remains, and other artifacts. More than 3,000 people were thought to have been killed and some divers swear that the wrecks in Truk Lagoon are haunted. Destination Truth conducted an underwater ghost hunting expedition in Truk Lagoon. While diving at the Hoki Maru, the divers recorded sounds of running engines in the cargo hold full of trucks. Here’s a virtual adventure with wreck divers who explored and photographed the Ghost Fleet of Truk Lagoon. This is underwater awesomeness! We love these pics! [33 Photos]